As with last year, Valve have posted a look back at all of the changes to Steam in 2019 with a brief look ahead to 2020 squeezed in at the end. There are plenty of features you may or may not remember being added to Steam last year, among them changes to User Reviews. Valve claims they have utilized the new system for excluding anomalous barrages of negative reviews quite a chunk of times since implementing the new policy last year.